<template>
  <div class="comment">
    <h3>发表评论</h3>
    <hr>
    <textarea placeholder="请输入要BB的内容（做多吐槽120字）" maxlength="120" v-model="msg"></textarea>
    <mt-button type="primary" size="large" @click="submitComment">发表评论</mt-button>
    <div class="cmt-list" v-for="(item, i) in commentList" :key="i">
      <div class="cmt-item">
        <div class="cmt-title">
          第{{i+1}}楼&nbsp;&nbsp;用户：{{item.user_name}}&nbsp;&nbsp;发表时间：{{item.add_time | dateFormat}}
        </div>
        <div class="cmt-body" ref="cnt">
          {{item.content === 'undefined'? '此用户很懒，什么也没留下': item.content}}
        </div>
      </div>
    </div>
    <mt-button type="danger" size="large" plain @click="getMore">加载更多</mt-button>
  </div>
</template>
<script>
export default {
  data () {
    return {
      pageindex: 1,
      commentList: [],
      msg: ''
      // content: this.$refs.cnt
    }
  },
  props: ['id'],
  created () {
    this.getComments()
  },
  methods: {
    getComments () {
      this.axios.get(`http://www.lovegf.cn:8899/api/getcomments/${this.id}?pageindex=${this.pageindex}`).then(res => {
        // console.log(res)
        if (res.status === 200) {
          this.commentList = this.commentList.concat(res.data.message)
          console.log(this.$refs.cnt)
        }
      })
    },
    getMore () {
      this.pageindex++
      this.getComments()
    },
    submitComment () {
      if (this.msg.trim().length === 0) {
        return alert('评论内容不能为空！')
      }
      this.axios.post(`http://www.lovegf.cn:8899/api/postcomment/${this.$route.params.id}`, {content: this.msg}).then(res => {
        if (res.status === 200) {
          let cmt = {
            user_name: '匿名用户',
            add_time: Date.now(),
            content: this.msg
          }
          this.commentList.unshift(cmt)
          this.msg = ''
        }
      })
    }
  }
}
</script>
<style scoped>
.comment h3 {
  font-size: 18px;
}
.comment textarea {
  font-size: 14px;
  height: 85px;
  margin: 0;
}
.comment .cmt-list {
  margin: 5px 0;
}
.comment .cmt-list .cmt-item {
  font-size: 13px;
}
.comment .cmt-list .cmt-item .title {
  line-height: 30px;
  background: #ccc;
}
.comment .cmt-list .cmt-item .cmt-body {
  line-height: 35px;
  text-indent: 2em;
}
</style>
